发明名称 |
A METHOD FOR CALIBRATING A MAGNETIC RESONANCE IMAGING (MRI) PHANTOM |
摘要 |
It is an object of the invention to improve MRI based treatment, especially MRI based radiotherapy. This object is achieved by a method for calibrating a magnetic resonance imaging (MRI) phantom having an expected geometry and comprising at least one MRI detectable part with a position within the geometry which is known with a geometric inaccuracy. The method comprises the following steps: step 1 : placing the phantom at a predetermined location in a magnetic resonance system such that the MRI detectable part is within a symmetry plane of a gradient system of the magnetic resonance imaging system and; step 2: acquiring an MRI image of the MRI detectable part of the phantom by means of a first sequence, wherein the MRI image comprises multiple slices; step 3 : determining the geometric inaccuracy of the MRI detectable part of the MRI phantom based on the position and the representation of the part in the MRI image. |
申请公布号 |
WO2017045964(A1) |
申请公布日期 |
2017.03.23 |
申请号 |
WO2016EP70916 |
申请日期 |
2016.09.06 |
申请人 |
KONINKLIJKE PHILIPS N.V. |
发明人 |
VESANEN, Panu Tapani;TANTTU, Jukka Ilmari |
分类号 |
G01R33/58 |
主分类号 |
G01R33/58 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|